Scan tool



FIG. 1 is a front perspective view of the invention;

FIG. 2 is a top view of the invention;

FIG. 3 is a front view of the invention;

FIG. 4 is a side view of the invention;

FIG. 5 is a rear view of the invention; and,

FIG. 6 is a bottom view of the invention.

The broken line showing of structural feature is included for the purpose of illustrating non-claimed subject matter and forms no part of the claimed design. 

The ornamental design for a scan tool, as shown and described. 